Adjustable Ergonomic The buildable laptop stand offers 7-level height adjustment for perfect eye height. The ergonomic laptop holder can raise your notebook from 6.9 cm to 15.2 cm above the tabletop for better viewing and typing, so that you can correct your sitting posture and reduce your neck and back pain over long hours at the computer. Very convenient for home, office and outdoor work.This laptop riser is uniersell compatible with all laptop models and sizes between 9 and 17.3 inches, such as MacBook Pro / Air, Microsoft Surface, ThinkPad, Lenoo, Samsung, Dell, HP, Acer, ASUS, Chromebook and more . With this width you can be sure that our notebook stand will fit your device well.Portable and polishable design: This portable laptop stand weighs only 0.3 kg and the size is 25 x 4.5 cm, very light and easy to stow. It only takes 3 seconds to open, close and install. The foldable notebook holder takes up little space, is suitable for all types of travel, from leisure to business, can easily be stowed in suitcases, rucksacks and even handbags.Stable construction and protection: The MacBook stand is made of high quality aluminum alloy. The sandblasted and anodized surface makes the bracket more stable and durable. It carries a weight of up to 20 kg on the top. With rubber pads on the hook, the top and bottom surface, the computer stand can hold your laptop securely and protect your device from scratching or slipping while drawing, typing and reading. In addition, smooth edges will never hurt your hands.Cooling and ventilation: 100% aluminum alloy, facing angle and open design of the ventilated laptop riser helps to get more airflow for better heat dissipation during the notebook, protects your laptops from hardware and CPU overheating. Laptops are an indispensable gadget for long hours of work or everyday life, a cooler laptop usually has a longer lifespan.